Asari Valkyrie--OP???

Thanks, I totally agree; Using the Reegar only means you can measure a distance of 10 meters - using the Harrier only shows you know where the ammo boxes are located.

Congrats on solo. And yes, she is feisty bitch. OP is a proper term for her.

Now man up, swallow that ryncol on the rocks, give her Raider and watch things dissolve into bloody pulp in front of her.

Congrats on your first real gold solo! The blueberry girl is one of my (old man) guilty pleasures, I totally love her...
You won't see her in PUGs often because they spec her incorrectly and/or don't know how to play with her. She's OP, but you have to play close to the enemy in order to unleash her full potential and that makes most PUGs uncomfortable: better to use TC and have unlimited packs (TGI) or gels (AIU) or huge health/shields (Jugs), right?
As for ammo, imo, you have two choices: either Warp for max biotic and barrier damage or total cheese with Incendiary (to use the Warp glitch).
     

She is a very good character for sure, but I wouldn't call her OP. She has to be very close to the enemies and Warp hasn't a so great recharge speed (compared to Throw for the Fury, who has also Dark Channel to deal damage at range). She's more tanky than her human counterpart and can exploit the incendiary glitch though.

Don't forget she's a beauty, not on prednisone like all the asari from ME:A...

That is true actually, except I didn't use asari sentinel but I used the n7 fury which is close enough minus the character model obviously. I had a message from a random pug he's like "Man you're so good at the fury, what build do you use?". I told him my build and he's pretty much like "She does damage but she's squishy and you (me) run her at 4 ranks in fitness".

Kits like the fury and the AVS put people out of their comfort zone, esp if they're not comfortable playing CQC and are more used to playing something that puts a player further back for example TGI harrier, X infiltrator with a sniper, or any other kit + build variation that doesn't force a player into CQC. 

The AVS and the fury are fun kits to use.

My definition of "overpowered" is more restricted than yours. I wouldn't put many characters in this category. I would say all the Flamers (short ranged too but third times less), the Cain Mines spammer, TGI, AIU, GI (squishy but so deadly) and probably the Juggernaut (not great regarding his damage output but quite impossible to kill if not played too crazily).

So my definition of OP seems more related to characters who are strong both offensively and defensively (or exceptionnaly good in one department) in the hands of an average player, while yours is more about what a pro-player can do with a kit.  

I would put the Valkyrie in my "second circle" of overpowered characters. 

Thanks for the compliment, but I wasn't talking about myself actually, I was just trying to assess what the "typical" ME3 MP player can do, based on my PUG experience.  

You will have another AA/Claymore solo,this week if i have a time.Hope this time with a sound.